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      Sunstroke and heatstroke

      Latest update: - Authors: Mieke Croughs, Ula Maniewski

      Spending too much time at a high temperature can cause dehydration. This can cause a sunstroke. A sunstroke can develop into a heatstroke. This is a life-threatening condition in which the body is unable to regulate its temperature.

      Symptoms of a sunstroke

      • headache
      • dizziness
      • nausea or vomiting
      • muscle cramps
      • fatigue
      • pale, clammy skin
      • dilated pupils
      • normal or slightly raised temperature    

      Symptoms of a heatstroke

      • headache
      • high fever, sometimes up to 41 °C
      • nausea
      • warm, dry, red skin
      • constricted pupils
      • a fast pulse and difficulty breathing

      Ultimately, confusion and loss of consciousness can occur. The risk is greater for young children, the elderly and people with health conditions.



      Drink plenty of water when it is warm, even if you are not thirsty.


      Avoid the full sun.

      Intense exertion

      Avoid intense exertion at high temperatures.

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